Answer:
The way to copy a text is you first move your mouse over the text in-tell it turns blue then press control hit c then put your little mouse text thing where you want to copy the text click hit control hit v then your are done
Hope This Helps!!!
Answer:
m∡ZA = 51°
m∡ZB = 39°
Step-by-step explanation:
∡ZB = 'b'
∡ZA = '12 + b'
b + 12 + b = 90
2b + 12 = 90
2b = 78
b = 39
12 + 39 = 51
